Seasonal variations of phytoplankton community structure in relation to physico-chemical factors in Lake Baiyangdian, China

Liu, Cunqi; Liu, Lusan; Shen, Huitao

doi:10.1016/j.proenv.2010.10.173

Cited by 55 publications

(23 citation statements)

References 36 publications

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“…The result of the test of significance using the Monte Carlo test on CCA to highlight the phytoplankton species-environmental variable relations is depicted in Table 5. The eigenvalues and the percentages of variance in axis 1 are found to be higher than axis 2, which corroborates the findings of Liu et al (2010) and Sharma et al (2016). Between physicochemical factors and phytoplankton species, the eigenvalue for axis 1 (0.5550) explains 38.47% correlation, while axis 2 (0.416) explicates 29.06% correlation.…”

Section: Resultssupporting

confidence: 84%

Diversity of phytoplankton in some domestic wastewater-fed urban fish pond ecosystems of the Chota Nagpur Plateau in Bankura, India

2018

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The present limnological investigation is conducted to study the relationship between phytoplankton abundance and five important physicochemical factors in urban wastewater-fed seven fish ponds of Chota Nagpur Plateau area. A total number of 43 phytoplankton taxa representing four classes, namely Cyanophyceae (7), Chlorophyceae (29), Bacillariophyceae (5) and Euglenophyceae (2), are thriving in these ponds which may suggest that different nutrient-rich wastewater supports the diversity and abundance of the phytoplankton. Different values of diversity indices, results of post hoc analysis and rarefaction curve are depicted spatial variations of phytoplankton abundance and physicochemical factors. From the Principal Component Analysis, out of 43 phytoplankton species, 23 important species are extracted. The canonical correspondence analysis presents that most of the phytoplankton species densities are associated with higher values of the physicochemical variables in these ponds. Correspondingly, in the present study, Algal Genus Pollution Index (AGPI) is employed to study the water quality of seven sites. From the AGPI score, it is revealed that Site 4 has probable high organic pollution and Site 2 and Site 3 have moderate organic pollution. Therefore, long-term intensive studies and proper management are necessary to protect these ponds toward eutrophication and degradation, because these ponds not only act as a safeguard of livelihoods but also contribute significantly at local level food and water security and economic prosperity.

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Section: Resultssupporting

confidence: 84%

Diversity of phytoplankton in some domestic wastewater-fed urban fish pond ecosystems of the Chota Nagpur Plateau in Bankura, India

2018

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“…As the primary producer of the entire water ecosystem, changes of phytoplankton species and numbers are closely related with surrounding factors and it gives the most direct response to the change of an aquatic ecological environment [1]. International policies and regulations such as EU Water Framework Directive and Marine Strategy Framework Directive put forward that characteristics of phytoplankton structure are important indexes of water quality assessment and water ecology conditions [2,3].…”

Section: Introductionmentioning

confidence: 99%

Phytoplankton Diversity of Jiaolai Estuary in Laizhou Bay and Relationship with Oceanic Environmental Factors

Gao¹,

Sun²

2016

Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)

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Abstract. Phytoplankton community structure and environmental factors of Jiaolai Estuary and adjacent waters in Laizhou Bay were investigated in October, 2015. Affected by high-concentration salt-containing wastewater discharged in east coasts, the water quality of investigated waters showed a trend of high salinization. 17 genera and 25 species were authenticated and diatom dominated. Phytoplankton species and abundance decreased obviously compared with those in the same period of previous years and the trend of change was increasing from the estuary and coasts to the outside, which was in contrast with distribution characteristics of phytoplankton in typical estuarine coastal waters. In addition to the nearshore alga species such as Melosira sulcata, offshore high-salt specie Cos. asteromphalus also became one of the dominant species in investigated waters. Results of multivariate statistics divided the phytoplankton community into three ecological groups, including Group I of an estuarine type in Jiaolai Estuary, Group II of a coastal low-salt type in east coasts of Jiaolai Estuary, and Group III of a high-salt, low-nutrition type near the main drain outlets of the industrial park. Correlation analysis showed that salinity and transparency were the main factors affecting the phytoplankton community composition of the investigated sea area.

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“…High frequency (100%) indicated great adaptability to the limiting conditions in the reservoirs, as observed by Tucci et al (2006), Liu, Liu and Shen, (2010), Domingues and Torgan (2012). Other frequent group, chryptophyceae, was documented in every studied reservoir.…”

Section: Relation Between Phytoplankton and Abiotic Factorsmentioning

confidence: 57%

Analysis of the phytoplankton community emphasizing cyanobacteria in four cascade reservoirs system of the Iguazu River, Paraná, Brazil

Adloff

Cristina

Reichert

et al. 2018

RBRH

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Knowing the ecological changes in a reservoir is of great relevance to study environmental impacts and assess water quality. Among these studies, the knowledge about the structure of the phytoplankton community is essential, once they represent a fundamental component of aquatic ecosystems, responding immediately to physical and chemical alterations in water. The objective of this work was to analyze the phytoplankton community and the influence of abiotic factors, along the longitudinal axis in four cascade reservoirs system of the Iguazu River, Paraná, Brazil, emphasizing the importance of cyanobacteria. Foz do Areia, Salto Segredo, Salto Santiago and Salto Caxias reservoirs were the objects of this study. The phytoplankton counting was made tubular sedimentation chamber using an inverted microscope. The results showed that the four reservoirs are under eutrophication processes, presenting intense cyanobacteria blooms, dominated mainly by Microcystis aeruginosa and Sphaerocavum brasiliense. There was no evident longitudinal gradient related to phytoplankton, as expected for reservoirs in a cascade system. The dominance of cyanobacteria shows that the Iguazu River is undergoing an intense process of environmental degradation, threatening the integrity of biological communities and causing serious damage to the ecosystem as a whole.Keywords: Eutrophication; Water quality; Hydroelectric reservoirs; Limnology. RESUMOConhecer as alterações ecológicas em um reservatório é de grande relevância para estudos de impacto ambiental e avaliação de qualidade da água. Dentro desses estudos, o conhecimento da estrutura da comunidade fitoplanctônica é necessário, pois esta comunidade tem uma importância fundamental nos ecossistemas aquáticos, respondendo de forma rápida às mudanças físicas e químicas da água. O objetivo deste trabalho foi analisar a comunidade fitoplanctônica e a influência das variáveis abióticas, considerando o eixo longitudinal em quatro reservatórios de hidrelétricas em cascata do rio Iguazu, Paraná, Brasil, destacando a importância das cianobactérias. Foram amostrados quatro dos reservatórios de hidrelétricas do rio Iguazu: Foz do Areia, Salto Segredo, Salto Santiago e Salto Caxias. A contagem dos indivíduos foi realizada utilizando câmara de sedimentação tubular em microscópio invertido. Os resultados mostraram que os quatros reservatórios estão sujeitos a processos de eutrofização, apresentando intensas florações de cianobactérias, com dominância principalmente de Microcystis aeruginosa e Sphaerocavum brasiliense. Não houve gradiente longitudinal evidente relacionado ao fitoplâncton, como é esperado para reservatórios em sistema de cascata. A dominância de cianobactérias indica que o rio Iguazu está passando por um intenso processo de degradação ambiental, ameaçando a integridade das comunidades biológicas e causando sérios danos ao ecossistema como um todo. Palavras-chave:Eutrofização; Qualidade da água; Reservatórios de hidrelétricas; Limnologia.RBRH, Porto Alegre, v. 23, e6, 2018Analysis of t...

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Seasonal variations of phytoplankton community structure in relation to physico-chemical factors in Lake Baiyangdian, China

Cited by 55 publications

References 36 publications

Diversity of phytoplankton in some domestic wastewater-fed urban fish pond ecosystems of the Chota Nagpur Plateau in Bankura, India

Diversity of phytoplankton in some domestic wastewater-fed urban fish pond ecosystems of the Chota Nagpur Plateau in Bankura, India

Phytoplankton Diversity of Jiaolai Estuary in Laizhou Bay and Relationship with Oceanic Environmental Factors

Analysis of the phytoplankton community emphasizing cyanobacteria in four cascade reservoirs system of the Iguazu River, Paraná, Brazil

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